[vtecsol]

I'de have to say the only thing I can think of is that you might be spinning the wheels when you start without knowing it, and if you let it warm up or idle longer than usual that affects the mileage too. I've always noticed the idle on mine is higher and stays higher for a longer period of time before it's warmed up. Also, the motor is colder before you start it and that means more gas is being wasted before it starts. idk, i bet its just a combination of things.